EP 1111374 B1 20031217 - Detection of non-uniformities of the thickness of a flexible web
Title (en)
Detection of non-uniformities of the thickness of a flexible web
Title (de)
Erfassung von Unregelmässigkeiten der Stärke einer flexiblen Materialbahn
Title (fr)
Détection de non-uniformités de l'épaisseur d'une bande flexible
Publication
Application
Priority
EP 99125749 A 19991223
Abstract (en)
[origin: EP1111374A1] Method for detecting irregularities in the gauge of a flexible material that can be found over the width of the material and along its length. The material is wound around a winder and while being wound is illuminated using a light bundle that reflects light back so that its reflection point can be spatially resolved and used to detect variations in the winding surface shape. Changes in the winding surface shape are caused by irregularities in the gauge of the wound flexible material. The invention also relates to a device for detecting changes in dimension or gauge of a wound flexible material.
IPC 1-7
IPC 8 full level
G01N 21/952 (2006.01)
CPC (source: EP)
G01N 21/952 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1111374 A1 20010627; EP 1111374 B1 20031217; AT E256862 T1 20040115; AU 2171101 A 20010709; DE 59908127 D1 20040129; DK 1111374 T3 20040405; ES 2213972 T3 20040901; WO 0148464 A1 20010705
DOCDB simple family (application)
EP 99125749 A 19991223; AT 99125749 T 19991223; AU 2171101 A 20001221; DE 59908127 T 19991223; DK 99125749 T 19991223; EP 0013108 W 20001221; ES 99125749 T 19991223